Op Amp Input Overvoltage Protection:

Clamping versus Integrated

High precision op amps enable system designers to create circuits that condition signals (amplify, filter, and buffer) while maintaining the precision of the original signal. When information is contained in very small variations of the signal, it is critical that op amps in the signal path perform their operation while contributing very little DC and AC error. The precision of the total system depends on maintaining the precision of the signal path.